Billiard cue



FIG. 1 is a perspective view of a billiard cue showing my new design;

FIG. 2 is a front elevation view thereof, the undisclosed sides being identical;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a billiard cue, as shown and described. 